CN104956415B

CN104956415B - Monitoring system

Info

Publication number: CN104956415B
Application number: CN201380071591.5A
Authority: CN
Inventors: 石井智之; 中川树生; 石桥雅义; 加藤美登里
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2013-02-26
Filing date: 2013-02-26
Publication date: 2017-03-22
Anticipated expiration: 2033-02-26
Also published as: US9728060B2; CN104956415A; EP2963628A1; WO2014132340A1; US20150356849A1; EP2963628A4; JPWO2014132340A1

Abstract

The present invention is a system for monitoring the state of a subject's health. The system is provided with the following: a measurement section for measuring, in a time sequence, the positions of a subject in the facilities in which the subject resides or stays; and an information processing section for determining the state of the subject's health by determining whether a change in the time sequence of the positions of the subject satisfies determination conditions that were determined beforehand.

Description

Monitoring system

Technical field

The present invention relates to the system monitored to the state of people.

Background technology

Develop in aging, and in most societies not live jointly for people more, wait the people of surrounding to recognize solitary When the deterioration of the health status of the family of old man or only People, the reduction of vital functionss, late risk is raised. Therefore, the system for seeking the efficiently state of supervision of residence person.

In the past, there is following device etc. in the monitoring system as habitant：To kettle (pot), combustion gas, tap water, electrically Deng the device that monitored of utilization state；To whether arranging sensor at home previously by the device for being detected； Or, residents' Emergency time presses the button the device circulated a notice of.These devices have in common that：When abnormal generation When by being notified to outside come the monitoring for carrying out safety.

On the other hand, usually, it is falling down and stiff, even if or being located after being absorbed in emergency situation mostly Put and can not recover completely, be at first unable to leave the bed as rising sometimes, or need nurse.Therefore, in order that People has longer The life that time supports oneself, seeks not to be notified after abnormal generation, but catches the deterioration or life of health status The sign of the reduction of function, takes preventative measure.But, above-mentioned existing monitoring arrangement does not have such function.

As the surveillance technology for deducing action in daily life, have by sound sensor disclosed in patent documentation 1 Device carrys out equipment monitor sound, so as to the system monitored to object.Also, Patent Document 1 discloses following technology： The room of sound generation is deduced by the strength ratio of the sound captured by multiple sound transducers, together with the feature of sound Deduce the producing cause of sound.

Prior art literature

Patent documentation

Patent documentation 1：Japanese Unexamined Patent Publication 2011-237865 publications

Non-patent literature

Non-patent literature 1：The great sons of Qiu Shan, " conception of the Science ＆ Society in long-lived epoch ", Yan Bo bookstores science Vol.80, No.1(2010)

The content of the invention

Invention problem to be solved

In the prior art of patent documentation 1, producing cause is deduced from the position of sound source for producing with the size of sound (for example, falling), but can not detect from the change (change of the state in time serieses) of the daily state of habitant strong Deterioration of health state etc..

The present invention provides a kind of system, and habitant especially will not take notice of in daily life, is lived with time serieses evaluation The state of person, judges the health status of habitant.

Means for solving the problems

In order to solve above-mentioned problem, for example with the structure described in claims.The application is included in multiple solutions The unit of problem is stated, but is enumerated for wherein one, be the system of the health status of supervision object person, have：Determination part, its With the position of the object in the facility that time serieses determine the object inhabitation or stop；And information processing Whether portion, its seasonal effect in time series change for passing through the position for judging the object meet predetermined decision condition, judge institute State the health status of object.

Invention effect

According to the present invention, monitored by the position of supervision object person is determined with time serieses, be capable of detecting when daily The change of the daily life pattern of supervision object person in life.Health status thus, it is possible to grasp supervision object person.

Further feature related to the present invention is according to the description of this specification, accompanying drawing can be clear and definite.Also, it is above-mentioned In addition, problem, structure and effect can be clear and definite by the explanation of below example.

Description of the drawings

Fig. 1 is the overall structure figure of the monitoring system that the first embodiment of the present invention is related to.

Fig. 2 is the figure of the set location of the layout and sensor of the facility for representing that supervision object person lives.

Fig. 3 is the structure chart of the measurement system of facility.

Fig. 4 is the figure illustrated to the principle for determining the generation position of footsteps.

Fig. 5 is of the flow process of the signal processing of the position for calculating footsteps.

Fig. 6 is the figure of the time change of the position that sound source is drawn out according to sensing data.

Fig. 7 is the flow process that the time series data of the sound source position according to footsteps calculates walking speed.

Fig. 8 is of the data acquisition system for being sent to information processing system from facility via network.

Fig. 9 represents the flow process of the distinguished number of walking sound.

Figure 10 is the measure example of sound pressure when ambient sound is measured by mike.

Figure 11 A are the integrated intensity time series datas of the specific frequency field in the measure example of Figure 10, are from 100Hz To the data of the frequency field of 400Hz.

Figure 11 B are the integrated intensity time series datas of the specific frequency field in the measure example of Figure 10, be 1kHz with On frequency field data.

Figure 12 is the measure example of sound pressure when ambient sound is measured by mike.

Figure 13 A are the integrated intensity time series datas of the specific frequency field in the measure example of Figure 12, are from 100Hz To the data of the frequency field of 400Hz.

Figure 13 B are the integrated intensity time series datas of the specific frequency field in the measure example of Figure 12, be 1kHz with On frequency field data.

Figure 14 A are of the time series variation of signal intensity when foot lands.

Figure 14 B are of the time series variation of signal intensity when foot lands.

Figure 14 C are of the time series variation of signal intensity when foot lands.

Figure 14 D are of the time series variation of signal intensity when foot lands.

Figure 14 E are of the time series variation of signal intensity when foot lands.

Figure 15 is of layout table.

Figure 16 A are of status information table.

Figure 16 B are get in touch with content table one.

Figure 17 is of unusual determination table.

Figure 18 is the use of of the flow process of the monitoring service of the monitoring system of first embodiment.

Figure 19 is of the data displaying picture of the monitoring director that information processing system is provided.

Figure 20 is the schematic diagram of the principle of the position deduction method of the monitoring system for representing second embodiment.

Figure 21 is the experiment for being compared the signal determined by two different media from same signal source Result figure.

Figure 22 A are the reaching time-differences for depicting from same signal source the signal determined by two different media Figure.

Figure 22 B are the figures for depicting the source location deduced according to the reaching time-difference of Figure 22 A.

Figure 23 is the structure chart of the measurement system of the monitoring system of fourth embodiment.

Figure 24 is the flow process of the calibration actions of the measurement system of fourth embodiment.

Flow process when Figure 25 is the opening and closing sound in calibration function using door.

Specific embodiment

Hereinafter, referring to the drawings embodiments of the invention are illustrated.In addition, accompanying drawing illustrates the principle in accordance with the present invention Specific embodiment, but these be for understanding the present invention, absolutely not for it is limited explain the present invention.

The monitoring system of the present invention is characterised by：The position of supervision object person, monitoring monitoring are determined with time serieses The state of object.Also, used as further feature, the monitoring system of the present invention also has the step of monitoring supervision object person The function of row function.So, the reasons why carrying out the monitoring of walking function is as follows.

Following survey result is described in non-patent literature 1：It is absorbed in because of the decline of motion function or cognitive function Need the ratio of nurse state a lot.Therefore, it can be said that being capable of the serviceability of the monitoring system of routine ground monitoring motion function Improve.Especially the meaning of life action is carried out from oneself movement and make blood flow well by walking movement and keep metabolism Two aspects of the meaning of function are set out, and walking function is important function.Therefore, the monitoring system of routine monitoring walking function is Effectively.But, it annually, is organized and led to by mainboard body etc. that motion function so far, the evaluation of walking function are Cross sports equipment etc. to receive the degree of function evaluation, it is insufficient in terms of the coverage and frequency of evaluation.It is strong in order to catch The sign that the deterioration of health state, vital functionss are reduced, takes preventative measure, it is generally desirable to, can in daily life certainly So evaluated, evaluation result can be known from outside.Therefore, in the present invention, supervision object is monitored from daily life The walking function of person.

Fig. 1 is the overall structure figure of the monitoring system that the first embodiment of the present invention is related to.Monitoring system 100 has：Prison Depending on object (object) live or stop facility 1, provide monitoring service information processing system 2, and monitoring be responsible for The terminal 3 that people uses these three main structural elements.

Facility 1 is with for measurement system TN0200 of the position of the object in time serieses measure facility 1.Determine System TN0200 has：Walking signal measurement unit TN0201, which measures walking signal by sensor；Control unit and computing Portion TN0202, its control walking signal measurement unit TN0201, the signal for measuring perform calculation process；Reservoir TN0203, its operation result to control unit and operational part TN0202 are stored；And communication unit TN0204, its have by Operation result communicates to outside function.

Whether information processing system 2 meets exception described later by the seasonal effect in time series change of the position to supervision object person The condition of critical table (Figure 17) is judged, and judges the health status of supervision object person.Information processing system 2 has：Via Network 8 receives from the communication unit TN0204 of measurement system TN0200 for being arranged at facility 1 communication unit 9 of the information for sending；Layout Information storage part 10；Unusual determination information storage part 11；History storage portion 12；Carry out action parsing, the walking of supervision object person Function evaluate, and unusual determination control unit and operational part 13；And observer's information storage part 16.In information processing system In system 2, the operation result of control unit and operational part 13 and the information from measurement system TN0200 are stored in history storage Deposit portion 12.

Information processing system 2 also have apps server (APP servers) 14, WEB server 15, and mail clothes Business device 17.Apps server 14 is provided to terminal 3 with reference to the information for being stored in history storage portion 12 and shows supervision object person State or history application function.WEB server 15 is carried according to the request received from terminal 3 via the networks such as the Internet 8 Picture for showing the state or history of supervision object person.Also, mail server 17 is using observer's information storage part 16 Information sends the mail of the state for notifying supervision object person for monitoring director at ordinary times or urgent director.

Apps server 14 and WEB server 15 are using the management letter for being registered in observer's information storage part 16 Breath, accordingly selects display content with the ID of the monitoring director for accessing WEB server.Terminal 3 has：Communication unit, its via Network 8 receives from the information processing system 2 for providing monitoring service walking function evaluation provide, supervision object person, action solution Analysis, the result of unusual determination.Also, terminal 3 also has：Display part, the information that its display is received；And input unit, its basis Needs are input into.Terminal 3 is, for example, PC, smart phone, tablet terminal and portable phone etc..

In addition, the structure at these each strong points need not as hardware independence, it is also possible to come in the hardware being integrally formed Realize multiple functions.And, there is provided the information processing system 2 of service is monitored, the information from information processing system 2 is received and is entered Row can also be present in same strong point to the terminal 3 of the input of information processing system 2.Also, multiple terminals can also be used 3.By monitoring being carried out at multiple positions can expect more reliable monitoring.As aftermentioned, monitoring at ordinary times can be responsible for People is combined to provide monitoring service with urgent reply person.Also, hold use away from local household etc. by making to inhabit In the terminal 3 of monitoring service, the state of supervision object person can be confirmed from afar.

Also, the structural element of measurement system TN0200 and information processing system 2 is by information processings such as computer, work stations Device is constituted.Information processor has：The storage parts such as central processor, memorizer and storage medium.Central authorities process dress Put by CPU (Central Pr0cessing Unit：CPU) etc. processor constitute.Storage medium is for example non-easy The property lost storage medium etc..Disk, nonvolatile memory etc. are included in non-volatile memory medium.Above-mentioned storage part and Reservoir is realized by storage parts such as storage medium or memorizeies.Also, be stored with storage medium realization monitoring system Program of the function of system etc., launches to be stored in the program of storage medium in memory.CPU performs the journey launched in memorizer Sequence.Therefore, the process of monitoring system described below can also be realized as the program for performing on computers.In addition, real Part or all for applying the structure of example for example can also be realized by hardware by being designed with integrated circuit etc..

Next the system in facility 1 is illustrated.Fig. 2 is of the layout of the building of facility 1.Facility 1 by： First room TN0101, the second room TN0102, bathroom TN0103, toilet TN0104, entry TN0105 are constituted, and each room leads to Cross corridor TN0106 and connect.Sensor TN0107a, TN0107b are for example arranged at two positions of the end of corridor TN0106, Carry out the sensing in facility 1.In addition, a, b ... for sewing in fig. 2, the back represent same structure key element, it be not the special feelings for needing Omit under condition.

Fig. 3 is the structure chart of measurement system TN0200 in facility 1, and in more detail the system in the facility 1 in Fig. 1 is entered Narration is gone.Measurement system TN0200 is to detect sound or vibration by sensor, obtain supervision object person position and The system of walking information.Measurement system TN0200 has：Sensor TN0107a, TN0107b, data collection unit TN0201a, control Portion processed and operational part TN0202, reservoir TN0203 and communication unit TN0204.

Sensor TN0107 is arranged in facility 1, and the sound or vibration of people's activity are sensed.By sensor The data that TN0107 is obtained are collected by data collection unit TN0201a.The data collected by data collection unit TN0201a are via control Portion and operational part TN0202 and be temporarily stored in reservoir TN0203.Control unit and operational part TN0202 are with regard to being received by data The data that collection portion TN0201a is collected carry out data dissection process.Also, control unit and operational part TN0202 carry out walking signal The control of measurement unit TN0201 and reservoir TN0203.Data parsing is carried out and obtained by control unit and operational part TN0202 Result be sent to network 8 via communication unit TN0204.Also, control unit and operational part TN0202 can be according to from logical The data of letter portion TN0204 are controlled and computing.

Next, illustrating to the details of the measure of sound source position in the present embodiment.In monitoring system, make The position that footsteps during supervision object person's walking is produced is determined with sensor TN0107, carries out the movement in facility 1 The measurement of the determination in path and place, translational speed etc..

Fig. 4 is the figure illustrated to the principle for determining the position of footsteps generation.When producing from footsteps (TN0301a, TN0301b ...) is to moment (the sensor TN0107a of the signal that footsteps is received by sensor TN0107： TN0302a, TN0302b ..., sensor TN0107b：TN0303a, TN0303b ...) till during, and produce from footsteps Distance of the place to sensor TN0107a, TN0107b accordingly, produce the propagation delay time.For example, sound in air The spread speed of sound is about 340m/s in 15 DEG C of temperature.Therefore, if having 1m between sensor TN0107a, TN0107b Range difference, then produce about 3 milliseconds of time delay.Also, when propagating in the rigid bodies such as corridor because of the vibration that walking is produced Also produce the propagation delay time.

The place movement produced with footsteps, sends out the time of advent for receiving sound by sensor TN0107a, TN0107b Changing.The spread speed of sound is being set to into v_sIn the case of, can postpone the distance from sound source to sensor the time of advent Divided by v_sObtained by the time.Therefore, the sound from a sound source is being received by two sensors TN0107a, TN0107b When, relational expression below is set up.

{x_f(n)-x₁}-{x₂-x_f(n) }=△ t (n) v_s

Here, x_fN () is the position of the sound source that sound is produced.Also, x₁It is the coordinate of sensor TN0107a, x₂It is sensing The coordinate of device TN0107b.Also, the time that △ t (n) is sensor TN0107a when receiving sound with sensor TN0107b Difference.Also, letter n represents the sound source position of the sound of n-th, measures time difference data.The mathematical expression can be as follows Deformation.

x_f(n)={ △ t (n) v_s+(x₂-x₁)}/2

Therefore, if knowing the coordinate of sensor TN0107a, TN0107b, the spread speed of sound and sensor The reception time difference of TN0107a and sensor TN0107b, then can calculate the position of sound source.Sensor TN0107a, The coordinate of TN0107b when arranging, it is known that the spread speed of sound depends on temperature and medium etc., but can be used as known Value is being processed.Therefore, the position of sound source can be calculated if △ t (n) is measured.

Fig. 5 is of the flow process of the signal processing of the position for calculating footsteps.The main body for below processing is measurement system The control unit and operational part TN0202 of TN0200.

First, the data (TN0401) of the footsteps from the sensor TN0107 being arranged in facility 1 are obtained.In order to incite somebody to action Acquired data are changed to the data for being suitable to time difference extraction, and are directed to acquired data and perform filtration treatment (TN0402).Specifically, such as usage frequency wave filter, carries out the place of the signal of the frequency for extracting certain preset range Reason, or noise remove process.Also, in order to improve signal to noise ratio, carry out the process etc. in frequency direction integration.

Next, after described process is implemented for the data from each sensor TN0107, carrying out reception letter Number reaching time-difference calculating (TN0403).Specifically, for example, in order to extract the time of advent of each signal, by entering Row time diffusion, extracts the time that differential value is peak value, thus obtains the sound variation big time, that is, obtain the arrival of sound Time.By the time of advent of sound being obtained for the data from each sensor TN0107 calculate their difference, so as to The reaching time-difference for calculating sound, the position (TN0404) for calculating sound source.Also, there is such as lower section as additive method Method：That calculates the data from each sensor TN0107 is mutually associated function, is highest time difference using dependency as arriving Up to time difference.The determination of sound source position is carried out using the reaching time-difference for calculating like this.

In addition, it is also contemplated that the method that sound source position is determined using key element beyond the propagation time.For example, exist and use sound Intensity method.The ratio of the intensity of the sound that can be received with sensor TN0107b according to sensor TN0107a is calculated Sound source position.But, in the method, it is sometimes prone to be affected by the directivity of sound, and causes result of calculation to produce error. Also, as sound is decayed in non-linear relative to distance, therefore there is also the situation for producing error.In this case, Sound source position is calculated by using propagation delay time difference and can more accurately calculate sound source position.

In the present embodiment, due to using reaching time-difference calculating the position of sound source, therefore from each sensor The data of TN0107 and are obtained by synchronization by data collection unit TN0201a.For example, if in atmosphere, then sound phase Distance for substantially 10cm or so needs about 0.3 millisecond of time.Accordingly, with respect to synchronous precision, in order to obtain substantially The positional precision of 10cm or so, is synchronized with the precision higher than about 0.3 millisecond in atmosphere of time.For high accuracy Calculate reaching time-difference, it is preferred that make the data from each sensor TN0107 for example with less than 0.1 millisecond of error Synchronization is simultaneously obtained.

Also, in order to accurately calculate reaching time-difference, need with certain frequency above to obtain data.It is preferred that , when position measurement is carried out with the error within 10cm, such as sampled with the sample frequency of more than 10kHz.

Fig. 6 is the when anaplasia for delineating the position according to the sound source calculated from the data of each sensor TN0107 Change the figure of (TN0501).In people's walking, movement, along with the time, the position of sound source changes.Can be from the time serieses Activity and place, the walking speed of people are grasped in data.

Fig. 7 is the flow process that the time series data of the sound source position according to footsteps calculates walking speed.Hereinafter process Main body be information processing system 2 control unit and operational part 13.

First, the time of footsteps generation and time series data TN0501 (with reference to Fig. 6) of sound source position are obtained (TN0601).Next, as needed time series data TN0501 is carried out filtering, interpolation etc., so as to be transformed to be suitable to meter Calculate the data (TN0602) of walking speed.Spline interpolation, linear interpolation etc. are considered in interpolation.

Next, by carrying out time diffusion for data obtained by conversion, so as to calculate the when anaplasia of walking speed Change (TN0603).Next, going out maximum or meansigma methodss etc. from the extracting data of walking speed time change, calculate Walking speed (TN0604).

Here, when walking speed is calculated, walking speed in the case where walking distance is short and in the case of walking distance length Degree is different.Therefore, when walking speed is for example compared with past walking speed, preferably enter under identical conditions Row compares.For example, it is contemplated that following method etc.：The walking speed of maximum during with more than walking a certain distance is being compared. Or, it is also contemplated that：Specific position is extracted, such as the walking speed waited near the center in corridor is being compared.

Also, as other examples, it is also contemplated that following method：It is in the door or setup of entrances and exits sensor in room, right The time difference that other rooms are moved to from certain room is measured, and obtains walking speed from its displacement.But, so Method in, the time due to being included near the gateway in room the switch for carrying out door of stopping, and turnover room when walking Speed changes, therefore, it is difficult to calculating accurate walking speed.On the other hand, according to the present embodiment, basis can be passed through The time series data of sound source position calculates walking speed, identify the time change of walking speed, maximum, meansigma methodss and Time stopped etc..Also, in addition to walking speed, can be in terms of the time series data according to the sound source position of footsteps Calculate walking period.

Fig. 8 represents from measurement system TN0200 the information processing system 2 being sent on network, and is stored in information processing system One of the data acquisition system of system 2.

As shown in figure 8, for the data of each step, the moment that sound is produced is stored in information processing with the position of sound source In the history storage portion 12 of system 2.Also, the data of sound source position not only can be extracted from the data of sound, it is also possible to extract Go out the characteristic quantity of the intensity and frequency field of sound.These data are used for walking parameter (walking intensity of sound, walking period, step Line position is put, walking speed etc.) calculating.The intensity of sound, frequecy characteristic amount of sound etc. are also stored into into information as needed The history storage portion 12 of processing system 2.Information processing system 2 performs the stop of supervision object person based on the data for storing The determination processing of the walking function of the presumption process and supervision object person in room.Information processing system 2 is detecting that monitoring is right As person exception when, notified to the process of 3 grade of terminal.

In addition, so far, after being parsed to data in the equipment by being arranged in facility 1, via net Network 8 stores data in the structure in the history storage portion 12 in information processing system 2 and is illustrated, but not limited to this. Data from sensor TN0107 can be sent directly to the history storage portion 12 of information processing system 2, be not to arrange In the equipment in facility 1 but whole computings are carried out in information processing system 2.If it is the local system in facility 1 to carry out The process of the degree of system (measurement system TN0200), then only high to a level of abstraction data be transmitted via network 8, therefore, peace Full property is higher.Also, as the data volume for being sent to information processing system 2 can be reduced, therefore, it is possible to suppress the traffic.

On the other hand, it is also possible to the configuration information processing system 2 in the way of cloud computing (cloud computing).The feelings Under condition, as long as by all of data storage to the information processing system 2 being present on cloud, and carrying out data processing, it becomes possible to profit With abundant computing resource.Further, it is possible to by the original signal data of the whole before processings of storage in information processing system 2 Exploitation in new application, update, added when applying, tracing back to over to implement parsing.

Also, generally also it is configured to, by measurement system TN0200 of the level of abstraction high data from facility 1 via net Network 8 and be sent to information processing system 2, only send initial data in the case of the request of information processing system 2 existing. Specifically, the initial data of a day for example can also be stored in reservoir TN0203 of measurement system TN0200, will be had and The initial data of the time period of the request of self-information processing system 2 is sent to information processing system 2.

In addition, in the present embodiment, to two sensors TN0107a, TN0107b being configured in facility 1, calculate monitoring The structure of the linear position of object is illustrated, but not limited to this.If configuration at least three is sensed in principle Device can then calculate the position of two dimensional surface.For example, it is also possible to respectively arrange one at four angles in corridor or room add up to Four sensors, obtain the walking sound in the space, determine the position of supervision object person.Determined by carrying out the position of two dimension The mobile route in the space can be calculated.

Also, one-dimensional position can also be calculated using plural sensor.For example, if passed using four Sensor determining one-dimensional position, as the information that can be used in calculating increases, therefore, it is possible to the precision that raised position determines.And And, even if in the case where data are not obtained by operative sensor, it is also possible to by the data from other sensors Calculate out position.

When ambulatory status are judged because of the signal that the vibration of ground or air is produced by footsteps etc., need to detection To vibration be whether that footsteps (walking sound) because walking is produced is differentiated.Here, for the differentiation of walking sound Method is described.

Fig. 9 represents the flow process of the distinguished number of walking sound.As an example, to being passed using vibration detections such as mikes Sensor is illustrated as the situation of sensor TN0107a, TN0107b.In addition, in fig .9, the process of step 901～910 Main body is the control unit of measurement system TN0200 and operational part TN0202, and the main body of the process of step 911～915 is at information The control unit and operational part 13 of reason system 2.

First, every time interval (T set in advance_sample), it is continuous by the vibration detecting sensor system such as mike Property ground (time serieses) measure the vibration (901) of ambient sound etc..Next, the time series data of ambient sound etc. is entered Row record (902).

Next, carrying out T_sampleThe parsing of the time series data of the vibration in the time.Specifically, obtain acquired T_sampleThe spectrogram of the time of vibration sequence data of time, differentiates in certain low frequency region (f₀To f₁) in whether there is certain (l in strength range_thl1To l_thh2) peak signal (903).Differentiate these as the first walking peak value.

Here, inhabitation pattern by country be it is various, but for example there is following pattern：In 1 interior life of taking off one's shoes of facility Pattern living and the pattern lived with the state of wear shoes in facility 1.In the former pattern, due to mostly with barefoot or Wear socks, the walking sound of state that to wear the soles such as slippers soft in walking, therefore residential building in facility 1 causes shakes Dynamic low-frequency component is strong, and its signal intensity is incorporated in limited amplitude of fluctuation.Therefore, it is possible to judge step using the property Row peak value.Even if also, in the pattern of the latter, it is also possible to carry out the differentiation of the first walking peak value.For the frequency field for differentiating (f₀To f₁) and strength range (l_thl1To l_thh2As long as) the shaking during walking in object of observation building to object of observation person Dynamic information is measured and is predetermined.

In addition, when there is no the peak signal for meeting the differentiation of the first walking peak value, being judged as not because walking causes Peak signal, return to step 901.When there is peak signal, 904 the step of differentiating as the second walking peak value before Enter.

Next, differentiate as the second walking peak value, to meeting during the decay of the peak signal that the first walking peak value differentiates Between whether be t₀Hereinafter judged (904).With regard to the criterion, due to walking sound be produce when foot lands, foot with The collision sound on ground, therefore the decay of signal intensity is fast, using this feature to the low frequency noise beyond walking and walking sound Sound is distinguished.When there is no the peak signal for meeting the condition, being judged as the peak signal not caused because of walking, returning Return to step 901.When there is peak signal, the step of differentiating as the 3rd walking peak value, 905 advance.

Next, differentiating as the 3rd walking peak value, the intensity to meeting the peak signal that the second walking peak value differentiates is No is certain frequency (f₂) more than, and be certain signal intensity (l_thh3) judged (905) below.With regard to the criterion, profit The larger sound and step beyond walking is distinguished with the few property of the radio-frequency component of the vibration produced during the walking in building Row sound.For the frequency (f for differentiating₂) and signal intensity (l_thh3) be then to object of observation person in object of observation building Walking when vibration information measured and predetermined.When there is no the peak signal for meeting the condition, it is judged as not having There is the peak signal caused because of walking, return to step 901.When there is peak signal, advance to step 906.

Next, being judged to that the peak signal for meeting the judgement of the 3rd walking peak value is (906) caused because of walking.And And, (906) are recorded to being determined as the time to peak of signal of the peak signal caused because of walking.

Next, the step detected with this to the time that the peak signal of the front walking sound for once detecting is produced Time difference between the peak signal generation time of the row sound whether (t within certain time₁To t₂) judged (907).Pass through The judgement is judging whether supervision object person is ambulatory status.Although this is the walking period for utilizing people because of health such as healths State and slightly change, but the feature being accommodated in certain shift range is being differentiated.When the condition is not met, It is judged to not ambulatory status (908), returns to step 901.When the condition is met, it is judged to that supervision object person is walking shape State (908).

When it is ambulatory status to be judged to supervision object person, the sound source position (910) of footsteps is calculated.For example, perform Flow process illustrated by Fig. 5.Then, by the letter of moment, the position of supervision object person, the signal intensity of footsteps and footsteps Number the information such as frequency be sent to information processing system 2.

Next, calculating walking period (911) according to the time interval for producing the signal peak caused because of walking.So Afterwards, deduce the position (912) of supervision object person.In addition, being described in detail to the presumption method of position later.Also, Walking speed (913) is calculated by the time series variation of the walking position for deducing.Next, by walking period, walking Scanning frequency degree, walking intensity of sound and walking position etc. are recorded in the history storage portion of information processing system 2 as walking parameter 12(914)。

Next, using the information of walking parameter, the position of supervision object person and unusual determination information storage part 11 Unusual determination table (with reference to Figure 17), deduces the state (915) of supervision object person.Do not have in the state for being judged to supervision object person When having abnormal, step 901 is returned to.When being judged to abnormal, rearwards illustrated abnormal situation reply transfer (reference picture 18).The method described by more than, differentiates walking sound, judges the health status of supervision object person.

The the first walking peak value differentiation from Fig. 9 to the 3rd walking peak value is differentiated using Figure 10～Figure 13 (step 903～ 905) illustrate.Here, using example of the socks in corridor walking is worn in facility 1 illustrating.

Figure 10 is by time interval (T_sample) be set to 0.6 second, by mike measuring sound pressure during ambient sound Time series data.Occur larger peak value near 0.4 second, but this will be judged whether because walking causes.

First, the spectrogram of the time series data of the sound pressure for measuring is obtained, from f₀=100Hz to f₁= In the time series data of the integrated intensity of the frequency field of 400Hz, to the presence or absence of l_thl1=more than 35dB, l_thh2=55dB Following peak value is investigated.

Figure 11 A are the time series datas of the integrated intensity of the frequency field from 100Hz to 400Hz.Understand attached at 0.4 second Closely there is the peak value of more than 35dB and below 55dB.Therefore, it is known that the example of Figure 11 A meets the first walking peak value and differentiates.

Next, the die-away time of the peak value to detecting is investigated.Here, will decline from the peak strength for detecting Time needed for 10dB is set to die-away time t₀, to t₀Whether judged below 0.1 second.In Figure 11 A, due to from peak value It is 0.03 second that intensity 50dB drops to the time needed for 40dB, it may thus be appreciated that meet the second walking peak value differentiating.

Next, nearby whether existing to 0.4 second of the integrated intensity time series data of the frequency field of more than 1kHz Below 40dB is investigated.Figure 11 B are the integrated intensity time series datas of the frequency field of more than 1kHz.Near 0.4 second Intensity is below 40dB, therefore, it is known that meet the 3rd walking peak value and differentiate.By the above, near 0.4 second in being judged to Figure 10 Peak signal caused by walking, the peak value generation time is recorded for 0.38 second.

Next, to carrying out with the calculating (the step of Fig. 9 907) of the difference of the front walking peak value generation time for once detecting Explanation.Here, the peak value near 0.4 second in Figure 10 is assumed to be into initial walking peak value, carries out T again_sampleThe sound of time Sound is measured.Figure 12 is to measure T again_sampleThe time series data during sound pressure of time.In fig. 12, it is attached at 1.0 seconds Closely see larger peak value, but will with it is front once in the same manner as judge this whether because walking causes.

Figure 13 A are the time series datas of the integrated intensity of the frequency field from 100Hz to 400Hz.Understand attached at 1.0 seconds Closely there is the peak value of more than 35dB and below 55dB.Therefore, it is known that the example of Figure 13 A meets the first walking peak value and differentiates.

The die-away time of the peak value is 0.05 second, from the integrated intensity time series data of the frequency field of more than 1kHz In (reference picture 13B), the intensity near 1.0 seconds is below 40dB.Therefore, it is judged to that peak value walking signal is caused because of walking , the peak value generation time is recorded for 1.03 seconds.

If the difference between the peak value generation time (1.03) and previous peak value generation time (0.38) is t₁= More than 0.25 second and t₂Then it is judged to ambulatory status within less than=1 second.Due to the 1.03-0.38=0.65 seconds, above-mentioned condition is met, Therefore, it is possible to be judged to that supervision object person is ambulatory status.

Here, differentiate that (step 903～905) are illustrated to differentiating to the 3rd walking peak value from the first walking peak value, But the distinguished number of walking sound is not limited to the combination.For example, it is also possible to by with for peak signal predetermined frequency At least one of die-away time of strength range and peak signal in region related condition is defining criterion. Also, other conditions can also be set.Also, it is here, strong to judge low-frequency component by simple threshold value set in advance The value of degree, radio-frequency component intensity and die-away time etc., but also can be dug by the data such as neutral net or support vector machine Pick, the method for rote learning are being judged.

Also, the vibration that walking is produced is seen as sound as sensor TN0107 used here as mike Survey, but can also be using other structures.For example, it is also possible to use mike or pressure vibration sensor, acceleration sensing Device, strain transducer are detecting from ground or wall the vibration transmitted.In this case, pressure vibration sensor, acceleration sensing Device is capable of detecting when small vibration.Also, strain transducer can detect the slow vibration of frequency of vibration.

Next, the typical case of the time series variation of signal intensity when landing to the foot observed during walking is said It is bright.Here, the absolute value of the amplitude of the walking sound that the vibrating sensor such as so-called signal intensity and mike is detected and walking Intensity of only low-frequency component of sound etc. is quite.Walking sound is considered as the walking sound for alternately detecting left and right foot.This In, for convenience, the walking sound being initially detected is set to into right crus of diaphragm, the walking sound for next detecting is set to into left foot, And respectively by solid line with dotted line representing.

Figure 14 A are the typical cases of normal person.The variation width at the landing interval of the landing cycle of left and right foot and left foot and right crus of diaphragm Degree is little, and the left and right difference in signal intensity is little.On the other hand, when joint because of morphotropism joint disease etc. in a foot etc. is present During the obstacles such as pain, left foot is spaced uneven (Figure 14 B) with the landing of right crus of diaphragm.Also, in other examples, difference in signal strength It is not big (Figure 14 C).

Also, even if the inhomogeneities of walking period, signal intensity are little, the cycle of there is also is longer than feelings more than amplitude of fluctuation Condition (Figure 14 D).Also, as other examples, there is also the situation (figure that signal intensity is weaker than more than amplitude of fluctuation at ordinary times 14E).In this case, suspection is because of the reduction of the weak walking ability for causing.In the present embodiment, the control of information processing system 2 Portion processed and operational part 13 are carrying out parsing to described manner of walking, more than walking sound interval set in advance (walking week Phase) and signal intensity mobility scale when, be judged to exception.In the case where exception is judged to, being transferred to abnormal situation should It is right.And, it is also possible to by these walking sound width intervals and signal intensity with one month before or preset the year before etc. Review during period walking sound width interval and signal intensity be compared, determine to be considered as abnormal variation model Enclose.In addition, in Figure 14 B～Figure 14 E, pattern of the walking sound interval with the combination of signal intensity is illustrated, but Exception can also be judged by least one party in walking sound interval and signal intensity.

Next, to be stored in the layout information storage part 10 of information processing system 2, unusual determination information storage part 11, History storage portion 12, and the data of observer's information storage part 16 illustrate.In addition, in the following description, use " table " structure is illustrating to the information of storage part 10,11,16 and reservoir 12, but described information can also be led to Cross data structure that table is related to be showed, it is also possible to enter by way of data structures such as list, queues and in addition Row performance.Therefore, data structure is not relied in order to represent, " table ", " list ", " queue " etc. are simply referred as into " letter sometimes Breath ".

Figure 15 represents the example of the layout table for being stored in layout information storage part 10.Layout table 1500 and setting shown in Fig. 2 Apply 1 layout it is corresponding.Layout table 1500 as composition project including：The central authorities of layout ID1501, classification 1502, gateway Position 1503, position judgment minima 1504, and position judgment maximum 1505.

The manufacture method of the table is illustrated.It is being sensor TN0107a and sensor by two sensors When TN0107b is arranged at facility 1, the distance between sensor is measured.With a certain distance from a side sensor TN0107b Point produces signal by tapping ground etc., and the calculating that above-mentioned sound source position is performed by system is processed.Take in multiple points Data are obtained, and correct computing mathematical expression when calculating and deviation being produced between position and actual measured value.

Also, actual survey is carried out to the distance from side's sensor TN0107b to the center of the gateway in each room Amount, and recorded.The distance is arranged from small to large in order, distributes layout ID.In addition, herein for explanation is easy to, will bath Room and entry etc. may not generally be referred to as the part in room and be also referred to as " room ".Also, using entry, toilet, bathroom, as bedroom Accommodation space, be not that the accommodation space in bedroom, corridor are distinguished, distribute the classification in room for each layout ID.

Distance from sensor TN0107b to the center of the entrance in the room of layout ID (R1) is set to into DR1, will be from Distances of the sensor TN0107b to the center of the entrance in the room of layout ID (R2) is set to DR2, will be from sensor Distances of the TN0107b to the center of the entrance in the room of layout ID (R3) is set to DR3.Now, the position in the room of R2 is sentenced Disconnected minima 1504 is set as (DR2+DR1)/2, and position judgment maximum 1505 is set as (DR3+DR2)/2.Specifically, R2 Room position judgment minima 1504 be (0.9+0)/2=0.45.Also, the position judgment maximum 1505 in the room of R2 For (1.5+0.9)/2=1.2.

In fig .15, in order to illustrate, example to the value (value of middle position 1503) from DR1 to DR5 and should Position judgment minima 1504 under sample situation is described with position judgment maximum 1505.Used due to actual Position judgment minima 1504 and position judgment maximum 1505, thus necessarily need not keep after the value is calculated from The value of DR1 to DR5.Also, for layout ID at two ends is R1 and R6, existence position does not judge minima 1504 or position Judge maximum 1505.The layout table 1500 for storing these data is stored in the layout information storage of information processing system 2 Portion 10.

Figure 16 A represent the example of the status information table 1600 for being stored in history storage portion 12.1600 pairs of letters of status information table The status information of the supervision object person in breath processing system 2 is stored.Status information table 1600 as composition project including： State ID 1601,1602, state time Start Date 1603 that is located, persistent period 1604, unusual determination 1605, contact ID1606 and contact date-time 1607.

Be stored with place 1602 value corresponding with layout ID1501 of layout table 1500.State time Start Date 1603 Represent that, in 1602 date-times for starting to stop that are located, the persistent period 1604 represents the persistent period for staying in place 1602.Separately Outward, the persistent period 1604 is the end point and the time difference of the next end point for stopping room in previous stop room, is not being had Have detect it is next stop room end point when (that is, stay in room in when), be current time at that time with it is nearest The difference at the moment of end point.For the presumption method for stopping room is described later.

In unusual determination 1605, determine in the judgement by using unusual determination table (with reference to Figure 17) described later In the case of exception, exception ID1701 is stored.It is stored with ID1606 is got in touch with and is judged to that supervision object person is performed when abnormal Contact ID1611 (reference picture 16B).Also, get in touch with the day that date-time 1607 pairs implements contact corresponding with contact ID1606 Time phase is stored.

Figure 16 B represent the example of the contact content table 1610 for being stored in observer's information storage part 16.Contact content table 1610 as composition project including contact ID1611 and content 1612.Specifically describe in content 1612 and be judged to prison After object exception, the content and result of the contact that director implements are monitored.Here, although eliminate diagram, but Information (the account being dividually also stored with the contact content table 1610 in observer's information storage part 16 to monitoring director Family, addresses of items of mail etc.) the management table that stored.

Figure 17 represents the example of the unusual determination table 1700 for being stored in unusual determination information storage part 11.Unusual determination table 1700 as composition project including abnormal ID1701, the meaning 1702, condition 1703 and urgent 1704.

1700 pairs, unusual determination table for the seasonal effect in time series change with the position of supervision object person, walking intensity of sound, The walking parameters such as walking period, walking position, walking speed are decision condition, judge that the information of the exception of supervision object person is carried out Storage.As the seasonal effect in time series change of the position of supervision object person, be movement in facility 1 (specific part such as corridor it is past Return), the stop room in facility 1 and the time of staying etc..

The meaning of condition 1703 is shown in the meaning 1702.For example, in abnormal ID1701=U1, it is set with night Go more than three times such conditions 1703 of toilet.This is to mean that night goes the frequency of toilet many, it is believed that uncomfortable.Remove Outside this, in abnormal ID1701=U2, walking speed is set with less than condition 1703 as 0.8m/s.This means walking Function is reduced.In addition, in the condition 1703 of unusual determination table 1700, the benchmark of the walking function such as walking speed is current with individual Walking function accordingly set.For example, by the physical stamina test in facility determining walking speed, by its certain ratio For example on the basis of 70% setting.When physical stamina test result is not obtained, to be judged to the walking speed or faster than which of weakness Speed on the basis of.Also, in order to detect to uncomfortable or injured etc., during certain recently, such as one The meansigma methodss of the walking speed between month, are judged to during by certain ratio speed below, such as less than 50% abnormal etc..Therefore, Although eliminating in fig. 17,1703 can also be imposed a condition by multiple supervision object persons.

And, although diagram is eliminated in fig. 17, but the condition 1703 of exception ID1701=U5, U9 is set with and figure The corresponding condition of the pattern of intensity and walking period of the walking signal illustrated by 14B～Figure 14 E.The control of information processing system 2 Portion processed and operational part 13 can use the pattern of signal intensity and walking period, judge the exception of supervision object person.

Also, be stored with urgent 1704 the labelling (0 or 1) for representing urgent.For example, when urgent 1704 is 1, table Show urgent exception.For urgent exception when, the mail server 17 of information processing system 2 is by means pair such as Emails Promptly people should be notified.When emergency is low, for example, gently reduce with the increase walking function at age, its result is When walking speed is reduced, observer at ordinary times is got in touch with when noticing, is carried out after carrying out my meaning and confirming etc. The reply of the reinforcing of walking function.Also, when the time of staying in bathroom or toilet is very long etc., due to there is life The probability of the emergency situation that life concerns, therefore information processing system 2 is in addition to monitoring director at ordinary times, is also directed to urgent Reply person performs notifier processes.By the utilization, the reply such as emergency access supervision object person promptly should be carried out to person.

Use the flow process of the process of unusual determination table 1700 as follows.The control unit and operational part of information processing system 2 13, using unusual determination table 1700 and the presumption result and walking parameter that stop room, perform the abnormal phase with supervision object person The determination processing (the step of Fig. 9 915) of pass.Control unit and operational part 13 to status information table 1600 and walking parameter whether It is consistent with the decision condition of the condition 1703 of unusual determination table 1700 and is calculated.When being consistent with decision condition, control Corresponding abnormal ID1701 is written to the unusual determination 1605 of status information table 1600 for portion and operational part 13.

Urgent the 1704 of information processing system 2 and unusual determination table 1700 accordingly, for monitoring director at ordinary times with And at least one party of urgent reply person performs notifier processes.In emergency situations, urgent reply person's emergency access supervision object The facility 1 of person.Monitoring director at ordinary times confirms the exception of supervision object person by terminal 3.Monitoring director with monitoring When object is got in touch with, contact content is input into by terminal 3.The control unit of information processing system 2 and operational part 13 are received should Information, the contact ID1606 and contact date-time 1607 to status information table 1600 are recorded.

Next, the presumption method to stopping room is illustrated.The control unit and operational part 13 of information processing system 2 Using seasonal effect in time series change and the layout table 1500 of the position of supervision object person, in the facility 1 stopped to supervision object person Room is judged.For example, control unit and operational part 13 the position for receiving habitant time serial message (Fig. 8) it Afterwards, the starting point of a series of walking behavior is judged with end point.End with regard to walking behavior judges so to carry out： When certain hour does not detect walking behavior, with the final step that is capable of detecting when as end point.

Control unit and operational part 13 are directed to the positional information of end point with reference to layout table 1500.Here, to end point Position is bigger than position judgment minima 1504, and layout ID1501 less than position judgment maximum 1505 is judged.Control The room that portion and operational part 13 are stopped after being judged to finish walking behavior by layout ID1501.Stop the judgement in room As a result it is reflected to status information table 1600.In addition, when stopping room and being entry (when the end point of walking behavior is entry) It is considered as outgoing.

Also, as more accurately judge turnover room method, it is also possible to as aftermentioned the opening and closing sound of opposite house or Person is measured because of the air pressure change that shutter door is produced, and is coordinated with walking signal.So far, by a series of walking behavior End point estimating stop room, but at the same time can also judge starting point.With regard to starting to judge, when certain hour does not have When detecting walking behavior, with the initial step that is able to detect that afterwards as starting point.Except with the behavior into room Outside corresponding end point, also starting point corresponding with the behavior walked out from room is detected, thereby, it is possible in more detail Grasp the action of supervision object person.Also, when there is no activity in corridor, can be come with end point both sides by using starting point Carry out unusual determination.

Alternatively, it is also possible to be, signal, information processing system 2 are produced by ground etc. is tapped before the gateway in each room The computing of the presumption in stop room is carried out, and corrects computing mathematical expression as needed.

Next, for the handling process of monitoring system is illustrated.Figure 18 is the use of the prison that first embodiment is related to One of the flow process of the monitoring service of viewing system.

First, when I, when wanting the tissue application monitoring service for being monitored of household or commune etc., monitoring clothes Business supplier arranges measurement system TN0200 in the facility 1 that supervision object person lives.After measurement system TN0200 is provided with, Sound, the computing mathematical expression of update information processing system 2 can also be produced in the gateway etc. in each room as mentioned above.Also, The login of account is carried out in information processing system 2.Also, monitor that ISP determines that monitoring director at ordinary times is answered with urgent To person.Monitoring director at ordinary times is stored in observer's information storage part with the information (account, address etc.) of urgent reply person 16。

Monitoring director receives the accounts information for logging in, and starts monitoring.Monitoring director at ordinary times is using PC, portable The data of the minimum supervision object person that once a day reads of the terminals such as terminal 3.Hereinafter, to notifying monitoring director and urgent reply The flow process of person is illustrated.

First, measurement system TN0200 of facility 1 perform all the time the signal detection of sound, footsteps judge, and position The process of calculating.Also, measurement system TN0200 of facility 1 all the time by the moment, the position of supervision object person, footsteps signal The information such as the frequency of intensity and step acoustical signal are sent to information processing system 2 (1801).

Information processing system 2 is performed at the calculating of walking period and the presumption in stop room based on the information for receiving Reason.Here, information processing system 2 updates status information table 1600 (1802) with reference to layout table 1500 (Figure 15).

Afterwards, information processing system 2 calculates the walking parameters such as walking speed, and the walking parameter for calculating for example is recorded In history storage portion 12 (1803).Whether information processing system 2 is met to the information of status information table 1600 and walking parameter The condition of unusual determination table 1700 is judged (1804).Here, suppose that being judged to supervision object person without abnormal (1804).

Monitoring director using terminal 3 at ordinary times carrys out the display to 2 request data display picture of information processing system, at end Hold 3 video data display pictures (with reference to Figure 19) (1805).Due to not finding that supervision object person has an exception, therefore here at ordinary times Monitoring director what need not do.

Afterwards, whether information processing system 2 meets unusual determination to the information of status information table 1600 and walking parameter The condition of table 1700 judged, is judged to that supervision object person has abnormal (1806).

Here, information processing system 2 is using the urgent 1704 high to determine whether emergency of unusual determination table 1700 Abnormal (1807).When it is the high exception of emergency to be judged to, the terminal of reply person when information processing system 2 directly notifies urgent 3 (1807, yes).Urgent reply person's reading is greeted to supervision object person from the notice of information processing system 2, or Emergency access facility 1 (1808).

On the other hand, when not being urgent exception, information processing system 2 is notified to the terminal of monitoring director at ordinary times 3 (1807, no).Monitoring director's reading is taken with supervision object person and is contacted from the notice (1809) of information processing system 2 (for example, greeting) (1810).Here, if normal from the response of supervision object person, monitoring director's using terminal 3 is defeated Enter to get in touch with content (1811).Information processing system 2 is by the contact content record for receiving to status information table 1600 (1812).Separately Outward, if supervision object person is answered as abnormal, the urgent reply person (1814) of monitoring director's contact.Have received the urgent of contact Reply person's emergency access facility 1 (1814).

In addition, in the case where exception is recognized, for example, in the case where low walking function reduction of emergency etc. is suspected, The recommendation of functional recovery/strengthening service such as it is trained.In the case of desired by supervision object person, monitor ISP and carry Contacted for the practitioner of functional recovery/strengthening service.

By carrying out above-mentioned utilization, special technical ability is not required to monitoring director at ordinary times, also, also without one It is straight that supervision object person is greeted, it is not required that to take the system of the emergency access to facility 1.Therefore, the monitoring of the present embodiment System is low burden for monitoring director at ordinary times.By using the monitoring system, adjacent family can be made to become monitoring Director.Its result is to provide with full-time office worker is possessed compared with the situation of monitoring system, can provide prison with low cost Depending on service.

Figure 19 is the example of the data displaying picture of the monitoring director that information processing system 2 is provided, and expression is shown in The picture of terminal 3.

In picture 1900, the presence or absence of action message and exception of multiple supervision object persons are illustrated in a view.Cause This, monitoring director can efficiently monitor multiple supervision object persons.Here, show in picture 1900 Hom1e, Home2, The information of the supervision object person at Home3 tri-.

For example, the mark 1901 of triangle represents passing through for corridor night, and the mark 1902 of corner represents leading to for corridor daytime Cross.Supervision object person's night of Home2 gets up by corridor for three times.Now, defend as supervision object person's night gets up for three times Between life, therefore it is consistent with U1 in the abnormal ID1701 of unusual determination table 1700.Therefore, in Status1903, warning is shown, Exception ID1701 (U1) is shown simultaneously.

When show that night gets up in picture 1900 often or walking speed is reduced etc. it is abnormal when, monitoring is responsible for People is contacted with supervision object person by phone etc..Actually in the case where exception is not recognized, monitoring director is using eventually 3 input contact content of end.Information processing system 2 from terminal 3 receive contact content information when, by the information record in state The contact ID1606 and contact date-time 1607 of information table 1600.

According to the present embodiment, can be come with time serieses in the case that supervision object person does not especially take notice of in daily life The position for determining supervision object person is monitored.And also the motion function of supervision object person can be determined with time serieses enter Row monitoring.The result for detecting is compared with pre-determined decision condition, can detect the exception of supervision object person.By This, can take appropriate means from outside for supervision object person using testing result.

Also, according to the present embodiment, by coordinating with the layout information in the positional information grasped, the room for obtaining in advance, The action monitoring which room when supervision object person pass in and out can be carried out.So, additionally it is possible to grasp supervision object person's day The change of normal life pattern, therefore, it is possible to detect that from more information supervision object person's is abnormal.

Also, according to the present embodiment, by monitoring to the walking function of supervision object person from daily life, energy The reduction sign of the motion functions such as walking function is enough caught, preventative measure is taken.

In the present embodiment, other examples of the method for the position in the facility 1 of presumption supervision object person are illustrated. Figure 20 is the schematic diagram of the principle of the position deduction method for representing second embodiment.

In the position deduction method of the present embodiment, the spread speed using sound is different because of the species of medium.Use Two mikes of air voice microphone Ml10_1 and ground voice microphone Ml10_2 fall measuring foot Ml10_3 during walking The walking sound produced during to ground Ml10_4.Air voice microphone Ml10_1 is arranged at ground voice microphone Ml10_2 Position close to each other.Air voice microphone Ml10_1 is observed in airborne sound, ground voice microphone Ml10_2 Observe the sound in overland propagation.

The spread speed of sound differs greatly because of the species of the medium for transmitting.For example, the speed of sound transmission in atmosphere Generally 350 meters per second of degree.On the other hand, the spread speed for being used for the timber of earth material is that 3000 to 5000m per second are left It is right.Figure 21 represents that certain walking sound reaches the time of air voice microphone Ml10_1 and ground voice microphone Ml10_2. As shown in figure 21, in air voice microphone Ml10_1, the time of advent of walking sound is t_air, relatively, in ground sound In mike Ml10_2, the time of advent of step sound is t_floor.Therefore, the ratio time of advent of ground voice microphone Ml10_2 Air voice microphone Ml10_1 morning.By the difference for parsing the due in, calculate from walking sound source from following mathematical expression Mike apart from l.

[mathematical expression 1]

In the mathematical expression, v_air、v_floorBe respectively in air with earth material in sound spread speed.These values according to Building and layout that Lai Yu is used, if by actual measurement once it is determined that, then can use as constant.Therefore, walk Row sound source away from mike apart from l with observed by air voice microphone Ml10_1 time of walking sound with by ground Face voice microphone Ml10_2 observes that the difference of the time of walking sound is directly proportional.Also, according to the walking sound for so calculating Sound is away from mike apart from l and the position of the layout information presumption supervision object person for being provided with mike.

Next, the specific example of the position deduction method to supervision object person when corridor walking is moved is illustrated. When supervision object person is moved in the corridor walking of substantially 3m, by air voice microphone Ml10_1 for being arranged at corridor end Four walking sound are observed with ground voice microphone Ml10_2.Figure 22 A are for these walking sound, relative to air The t time of advent of voice microphone Ml10_1_airThe time of advent and ground voice microphone to air voice microphone Ml10_1 The figure drawn by the difference of the time of advent of Ml10_2.Also, Figure 22 B are arriving relative to air voice microphone Ml10_1 Up to time t_airTo the time of advent in air voice microphone Ml10_1 using above-mentioned mathematical expression according to walking sound and ground The figure drawn apart from l to mike that the difference of the time of advent in voice microphone Ml10_2 is calculated.Here, v_air、v_floorCalculated by 340m per second, 4200m per second respectively.

In such manner, it is possible to obtain the walking sound source i.e. supervision object person at the moment that each walking sound is produced away from mike away from From.Can be pushed away apart from l and the information of the layout for being provided with mike away from mike by the walking sound source that so calculates Make the position of supervision object person.

Also, in the present embodiment, using two mikes dividually to the walking sound with air as Medium Propagation and Walking sound with ground as Medium Propagation is measured, but if make non-directive mike from ground leave several millimeters to Several centimeters then can be measured to ground sound and air sound both sides being configured.And in the present embodiment, in order to Detect walking sound and used mike, but acceleration transducer and pressure transducer, strain transducer can also be used Deng other vibration detection devices.

<3rd embodiment>

Push away when in the present embodiment, to deducing that walking sound is little, being difficult to and walking sound is observed as vibration The method for determining position in the building of supervision object person is illustrated.

The state that can not observe walking sound although supervision object person is moved is considered as supervision object Person's is weak.Accordingly, it would be desirable to health status can be detected by the monitoring system for monitoring.But, can not see In the case of measuring walking sound, the place of supervision object person not can determine that by above-mentioned method, it is impossible to detect whether It is mobile.In this case, in order to determine the place of supervision object person, walking acoustic information is not only, goes back the position inspection of dual-purpose others Survey method.

For a kind of this method be using make use of the electromagnetic waves such as ultrasound or infrared ray from the anti-of object of observation thing The range sensor penetrated.Described range sensor is detected to the electromagnetic wave come from the reflection of object of observation thing, is utilized and which Envision deviation, triangle metric method of the time of advent etc. and calculate the distance between object of observation thing and sensor.By these distances Sensor is arranged at the ceiling position that can look around the life moving-wires such as corridor, measures supervision object person such that it is able to deduce The place of supervision object person.With regard to the method, can be easily configured by cheap sensor, but must be right to monitoring As person irradiate electromagnetic wave so as to echo returns to sensor, accordingly, it would be desirable to according to using building substance environment come research equipment Place.

Also, as other examples, it is also possible to arrange red in the ceiling position that can look around the life moving-wires such as corridor 360 degree of photographing units (image acquiring section) of outside line, calculate the position of supervision object person by infrared view.The method is at certain Degree setting place has degree of freedom, but information processing system 2 to need with view data from image detection position Processing unit.

Also, as other others method, there is following method：It is in striped at the ground back side of the life moving-wires such as corridor Shape or clathrate ground arrange electrostatic proximity transducer.So-called electrostatic is near the touch panel that sensor is for electrostatic capacity type Sensor, is the sensor that detected of change of the electric capacity produced with the object for being considered electrical ground to electrode.If Near electrode, then electric capacity increases object, therefore, it is known that object is near electrode.If by the sensor being for example in striated Long side direction in corridor is configured every 15cm, then the position of supervision object person can be observed by the resolution of 15cm. With regard to the method, due to being proximate to sensor, therefore, it is possible to be arranged at the back side on floor etc., there is operating cost after setting and lack this The advantage of sample.However, it is desirable to the engineering being configured in ground back etc., or striated electrostatic is equipped with ground laying and leans on The lay-ups such as the flannelette blanket or mat of nearly sensor.

This example demonstrates that the method calibrated of parameter and structure during to calculating the position of sound source.Figure 23 is The structure chart of the monitoring system that four embodiments are related to, is disposed on other examples of the measurement system of facility 1.

Measurement system TN0200_2 has：Sensor TN0107a, TN0107b, data collection unit TN0201a, control unit with And operational part TN0804, reservoir TN0203, communication unit TN0204, temperature sensor TN0801, speaker TN0802 and drive Dynamic device TN0803.Speaker TN0802 for example exports the signal with the signal identical type of the footsteps from supervision object person.

When the position of sound source is calculated, by the distance between sensor TN0107a and TN0107b, and sound transmission speed Degree is as parameter.Sometimes the sensor TN0107 in facility 1 is arranged at along with the change of the configuration of furniture etc., make sensor TN0107 is moved.Also, in initially set sensor TN0107 etc., need the calibration of the distance for measurement therebetween.Also, As the spread speed of sound changes because of temperature, it is therefore desirable to be modified according to temperature at that time.Therefore, following In example, sensor is reached from speaker TN0802 using the temperature and signal detected by temperature sensor TN0801 The time difference of TN0107a, TN0107b, performs for estimating the calibration of the mathematical expression of the position of the sound source of footsteps.

Figure 24 represents the flow process of calibration.First, control unit and operational part TN0804 control temperature sensor TN0801, take Obtain the data (TN0901) of temperature.The aerial spread speed of known sound changes because of temperature, for example, can pass through following Mathematical expression approx calculated.

v_s=331.5+0.6T (m/s)

Here, T is temperature (DEG C).Control unit and operational part TN0804 obtain sound according to temperature using the mathematical expression Spread speed v_s(TN0902)。

With regard to the distance between two sensors TN0107a, TN0107b, using from being arranged at and sensor TN0107a phases Every preset distance speaker TN0802 sound being calibrated (between sensor TN0107a and speaker TN0802 away from From known).Speaker TN0802 is driven by driver TN0803, and exports sound (TN0903).

Next, the sound from speaker TN0802 outputs is received by sensor TN0107, control unit and operational part TN0804 calculates the time difference (TN0904) that sensor TN0107a and sensor TN0107b is received.

Next, due to being known as the distance between speaker TN0802 and sensor TN0107a of sound source, therefore control Portion processed and operational part TN0804 calculate the position (TN0905) of sensor TN0107b.In this computation, using according to temperature biography Data that sensor TN0801 is measured and the spread speed of sound that calculates.Control unit and operational part TN0804 are so asked The parameter setting for going out uses (TN0906) for parsing, for the parsing that sound source position is calculated.

In addition, the sound in calibration from speaker TN0802 outputs needs not be zone of audibility, can also for example be super Sound wave.If ultrasound wave then people can't hear, therefore the people for living is unaware of and can just be calibrated.Also, in order to not make Calibration brings unplessantness displeasure, it is also possible to use music.

With regularly, the startup of monitoring system when, event produce when waiting time being calibrated.Specifically, for example, if Put sensor TN0107 etc. and carry out during startup power supply, thus automatically obtain the parameter for carrying out position calculation.Also, for example lead to Cross to wait every 10 minutes and regularly calibrated, cope with a day of temperature and change.Also, can also be in temperature Change When or implement calibration when event occurs when producing the sound of larger sound, moving furniture and sensor TN0107 itself etc..Or Person, it is also possible to from the instruction of information processing system 2, calibrated according to via network 8.For example, in the number of footsteps position According to exception, when being judged as needing the calibration into line parameter, it is considered to indicate etc. from information processing system 2.Also, can also be Carry out when supervision object person is outgoing.

In addition, the structure of the calibration with new speaker TN0802 of the present embodiment is illustrated, but not limited to this, Sound source known to speaker TN0802 fields of employment can also be replaced.Can also be for example known door from layout using position It is opened and closed sound to be calibrated.Thus, also daily can be calibrated even if especially not arranging speaker TN0802 etc..

Figure 25 is that the opening and closing sound of door is used for flow process when calibrating.Hereinafter, using the symbol of Figure 23 illustrating, but It is that in this example, measurement system TN0200_2 does not have speaker TN0802 and driver TN0803, sensor TN0107 The distance between door with calibration is known.

When the opening and closing sound by door is used to calibrate, in order to arranging the facility 1 of measurement system TN0200_2 or living The opening and closing sound of door differentiated, in addition to the process of common calibration, in addition it is also necessary to obtain this opening and closing sound and go forward side by side The process of row record.For example, the opening and closing sound that measurement system TN0200_2 has checking list, the correction table record opposite house is added The data and the data from temperature sensor TN0801 of the time change of the parameter (frequency field and intensity etc.) of feature. Hereinafter, the flow process to processing is illustrated.

First, after measurement system TN0200_2 to be arranged at facility 1, control unit and operational part TN0804 controls are warm Degree sensor TN0801, obtains the data (2501) of temperature.Next, being taken with sensor TN0107b by sensor TN0107a Obtain the opening and closing sound (2502) of door.Afterwards, control unit and operational part TN0804 are gone for the data execution filtration treatment for obtaining Except noise (2503).

Next, control unit and operational part TN0804 extract the opening and closing sound gone out characteristic quantity (frequency field with it is strong Degree etc.), by the time change of its characteristic quantity with the data record from temperature sensor TN0801 in checking list (2504).And And, control unit and operational part TN0804 calculate the opening and closing sound of the door in sensor TN0107a and sensor TN0107b Reaching time-difference, by the information record in checking list (2505).

Step 2501～2505 are carried out when system is arranged.So, in the calibration when system is arranged, it is right to obtain in advance The frequency field of the opening and closing sound supplementary features of door and the time change of intensity, by the data and from temperature sensor TN0801 Data record in checking list.In addition, signal is received by sensor TN0107a, TN0107b, detects the time of advent Difference, sign in difference.In addition, door have it is multiple in the case of, by it is respective opening and closing sound characteristic quantity and sensor The time difference that TN0107a, TN0107b are received is set to group to be recorded.According to the structure, even if in the characteristic quantity phase of sound As in the case of, it is also possible to out position is speculated based on the information of time difference, therefore, it is possible to which door distinguished.Can also be The opening and closing sound of any one used in calibration.

Step 2507～2510 are the step of daily sound are measured.When daily sound is measured, control unit and fortune The value of the signal detected by sensor TN0107a, TN0107b and checking list is compared by calculation portion TN0804, and judgement is No is the opening and closing sound (2507) of door.When it is not the opening and closing sound of door to be judged as, do not calibrated, sentenced to above-mentioned footsteps Constant current journey is shifted.

When the opening and closing sound of door is judged as YES, in the same manner as the situation of the calibration for illustrating before, temperature sensor is controlled TN0801 obtains the data (2508) of temperature.Next, control unit and operational part TN0804 are with from temperature sensor Based on the data of TN0801, the time of advent of the opening and closing sound of the door received to sensor TN0107a, TN0107b is obtained Difference has carried out value △ tc ' (2509) obtained from temperature adjustmemt.

Next, control unit and operational part TN0804 calculate the amendment of the mathematical expression of the sound source position for obtaining footsteps , and record the correction term (2510).Here, it is to be received by identical sensor TN0107a, TN0107b when arranging with system The reaching time-difference △ tc of the opening and closing sound of the door for arriving.When reaching time-difference △ tc ' is different from reaching time-difference △ tc, it is believed that Sensing station deviates.Here, when footsteps is sensed, the reception time difference of sensor TN0107a, TN0107b is set to △ t, the mathematical expression for obtaining the position xf of the sound source of footsteps are for the x shown in first embodiment_fN the mathematical expression of () is added The following mathematical expression of correction term.

Xf={ Δ t v_s+(x₂+x₁)}/2+(Δtc-Δtc’)/2

Here, the n of suffix is omitted.x₁、x₂It is the coordinate of sensor setting sensor TN0107a, TN0107b originally.Root According to the structure, though system arrange after move sensor TN0107a, TN0107b in the case of, by with it is pre-recorded The value of checking list is compared, and can obtain the correction term of the mathematical expression of the position of the sound source for calculating footsteps, can measure Accurate position.

In addition, the present invention is not limited to the above embodiments, including various variations.For example, above-mentioned reality Example is applied for ease of understanding the explanation of the present invention and is illustrated in detail, may not be defined in illustrated whole knot Structure.Also, a part for the structure of certain embodiment is replaced as the structure of other embodiment sometimes, and also can be to certain The structure of embodiment adds the structure of other embodiment.Further, it is possible to for a part for the structure of each embodiment carries out other The additional of structure, deletion, displacement.

For example, as mentioned above, it is also possible to which the data from sensor TN0107 are transmitted directly to into information processing system 2, Remaining process is performed in 2 side of information processing system.Also, can also by the information configuration of unusual determination etc. in facility 1, Measurement system TN0200 side performs exception and sentences former process.So, the structure at each strong point suitably can be changed.

As described above, for example can be by the structure that embodiment is realized by hardware such as being designed with integrated circuit Part or all.Also, the present invention can also by realize the function of embodiment software program code realizing.The feelings Under condition, the computer-readable media (non-of the non-transitory that have recorded program code is provided to information processor (computer) Transitory computer readable medium), the information processor (or CPU) reads and is stored in nonvolatile The program code of the computer-readable media of property.Floppy disk, CD-ROM, DVD- are used for example as the computer-readable media of non-transitory ROM, hard disk, CD, photomagneto disk, CD-R, tape, non-volatile storage card, ROM etc..

Also, program code can also be by the temporary computer-readable media (transitory of various type Computer readable medium) and it is fed into information processor.The example bag of temporary computer-readable media Include electric signal, optical signal and electromagnetic wave.Temporary computer-readable media can be via cable modems such as electric wire and optical fiber Program is provided information processor by letter road or wireless communication.

Also, the control line and information wire in accompanying drawing represents the content for thinking to need in explanation, may not represent complete on product The control line and information wire in portion.All of structure can also be connected to each other.

Symbol description

1：Facility

2：Information processing system (information treatment part)

3：Terminal

8：Network

9：Communication unit

10：Layout information storage part

11：Unusual determination information storage part

12：History storage portion

13：Control unit and operational part

14：Apps server

15：WEB server

16：Observer's information storage part

17：Mail server

100：Monitoring system

1500：Layout table (layout information)

1600：Status information table

1610：Contact content table

1700：Unusual determination table

TN0200：Measurement system (determination part)

TN0201：Walking signal measurement unit

TN0201a：Data collection unit

TN0202：Control unit and operational part

TN0203：Reservoir

TN0204：Communication unit

Claims

1. a kind of system of the health status of supervision object person, it is characterised in that the system has：

Determination part, which determines the position of the object in the facility of the object inhabitation or stop with time serieses； And

Whether information treatment part, its time series variation for passing through the position for judging the object meet predetermined judgement bar Part, judges the health status of the object；

Wherein, described information processing unit calculates the step of the object according to the time series variation of the position of the object At least one of scanning frequency degree and walking period,

The decision condition includes the condition related at least one of the walking speed and walking period.

2. system according to claim 1, it is characterised in that

The determination part has：Multiple sensors that sound from the object or vibration are detected,

The determination part is come from the time difference that the generating source of the sound or vibration reaches the plurality of sensor using signal Estimate the position of the generating source.

3. system according to claim 2, it is characterised in that

The plurality of sensor is arranged on position close in the facility, and to the signal in Propagation different from each other Detected,

The determination part estimates the position of the generating source using the difference of the spread speed of the signal in the different medium.

4. system according to claim 2, it is characterised in that

The determination part estimates the position of the object using with least one of lower component：For to electromagnetic wave from institute State the sensor detected by the reflection of object；For being taken come the image of test position according to the image comprising the object The portion of obtaining；And for the object near when the sensor that detected of capacitance variations.

5. system according to claim 2, it is characterised in that

The determination part also has：Detect the temperature sensor of the temperature in the facility；And be arranged at away from the plurality of biography The sound of sensor preset distance goes out output section,

The temperature and signal that the determination part is detected using the temperature sensor reaches described from the audio output unit The time difference of multiple sensors, performs for estimating the calibration of the mathematical expression of the position of the generating source.

6. system according to claim 5, it is characterised in that

The audio output unit is the speaker of output and the acoustical signal identical type signal from the object.

7. system according to claim 5, it is characterised in that

The audio output unit is the door in the facility,

The determination part performs the calibration using control information, and the control information record has the sound made from the door Data with feature and the data from the temperature sensor.

8. system according to claim 1, it is characterised in that

The determination part with to the sound from the object or multiple sensors for being detected of vibration,

The time series data of the signal intensity of the signal that the determination part is detected using the plurality of sensor, judges institute State the walking sound of object.

9. system according to claim 8, it is characterised in that

Whether the determination part meets predetermined walking criterion by the peak signal for judging the time series data, comes Judge the walking sound of the object,

The walking criterion includes：With the strength range and described in the preset frequency region for the peak signal The condition of at least one of die-away time of peak signal correlation.

10. system according to claim 9, it is characterised in that

Between continuous two peak signals of the determination part by the walking sound to being judged to the object when Between difference whether judged in the predetermined time, judge whether the object is ambulatory status.

11. systems according to claim 8, it is characterised in that

Described information processing unit calculates the walking of the object according to the signal of the walking sound for being judged to the object Intensity of sound and walking period,

It is described to judge that also condition includes and the related condition of at least one of the walking intensity of sound and walking period.

12. systems according to claim 1, it is characterised in that

Described information processing unit also has：Storage part, its layout information to the room in the facility are stored,

Described information processing unit is judged described using the time series variation and the layout information of the position of the object The room in the facility that object is just being stopped.

13. systems according to claim 12, it is characterised in that

The decision condition also includes：In the stop room and the facility in the movement in the facility, the facility At least one of time of staying in room related condition.

14. systems according to claim 1, it is characterised in that

The system also has：At least one terminal of the display part with the state for showing the object,

Described information processing unit is performed at least one terminal when the health status for being judged to the object are abnormal Notifier processes.